Class 8 Maths Worksheet: Compound Interest

Maths worksheets lesson 63: Compound interest · Set 190 · 40 sums

The method (Grow it every year): Year by year: new amount = amount × (100 + R) ÷ 100. Amount after T years = P × (1 + R/100)ᵀ; compound interest = amount − P. A value falling by R% each year: × (100 − R) ÷ 100 every year. For 2 years, CI − SI = P × R × R ÷ 10000.

1. 1.What is the difference between the compound interest and the simple interest on ₹42800 at 25% per year for 2 years (in ₹)?
2. 2.What amount will ₹45700 grow to in 1 year at 5% per year compound interest (in ₹)?
3. 3.What is the difference between the compound interest and the simple interest on ₹56400 at 15% per year for 2 years (in ₹)?
4. 4.What amount will ₹8000 grow to in 3 years at 5% per year compound interest (in ₹)?
5. 5.Find the compound interest on ₹22500 at 25% per year for 1 year, compounded every year (in ₹).
6. 6.What amount will ₹32000 grow to in 3 years at 25% per year compound interest (in ₹)?
7. 7.Find the compound interest on ₹20100 at 25% per year for 1 year, compounded every year (in ₹).
8. 8.What amount will ₹20000 grow to in 2 years at 4% per year compound interest (in ₹)?
9. 9.What is the difference between the compound interest and the simple interest on ₹13200 at 10% per year for 2 years (in ₹)?
10. 10.What is the difference between the compound interest and the simple interest on ₹2400 at 25% per year for 2 years (in ₹)?
11. 11.What is the difference between the compound interest and the simple interest on ₹2300 at 10% per year for 2 years (in ₹)?
12. 12.Find the compound interest on ₹5100 at 25% per year for 1 year, compounded every year (in ₹).
13. 13.What is the difference between the compound interest and the simple interest on ₹16500 at 20% per year for 2 years (in ₹)?
14. 14.Find the compound interest on ₹42200 at 4% per year for 1 year, compounded every year (in ₹).
15. 15.Find the compound interest on ₹42500 at 8% per year for 1 year, compounded every year (in ₹).
16. 16.What is the difference between the compound interest and the simple interest on ₹27000 at 10% per year for 2 years (in ₹)?
17. 17.What is the difference between the compound interest and the simple interest on ₹37500 at 12% per year for 2 years (in ₹)?
18. 18.What is the difference between the compound interest and the simple interest on ₹10000 at 4% per year for 2 years (in ₹)?
19. 19.What amount will ₹16400 grow to in 2 years at 5% per year compound interest (in ₹)?
20. 20.What is the difference between the compound interest and the simple interest on ₹42400 at 25% per year for 2 years (in ₹)?
21. 21.What amount will ₹36300 grow to in 1 year at 10% per year compound interest (in ₹)?
22. 22.What is the difference between the compound interest and the simple interest on ₹48400 at 15% per year for 2 years (in ₹)?
23. 23.A town has 29500 people. The population grows by 20% every year. What will the population be after 2 years?
24. 24.What is the difference between the compound interest and the simple interest on ₹52400 at 15% per year for 2 years (in ₹)?
25. 25.Find the compound interest on ₹42900 at 12% per year for 1 year, compounded every year (in ₹).
26. 26.A town has 4700 people. The population grows by 10% every year. What will the population be after 1 year?
27. 27.Find the compound interest on ₹44800 at 25% per year for 1 year, compounded every year (in ₹).
28. 28.What is the difference between the compound interest and the simple interest on ₹20800 at 5% per year for 2 years (in ₹)?
29. 29.What is the difference between the compound interest and the simple interest on ₹2500 at 12% per year for 2 years (in ₹)?
30. 30.What amount will ₹42700 grow to in 1 year at 10% per year compound interest (in ₹)?
31. 31.Find the compound interest on ₹20700 at 12% per year for 1 year, compounded every year (in ₹).
32. 32.A town has 3400 people. The population grows by 15% every year. What will the population be after 1 year?
33. 33.A town has 38000 people. The population grows by 15% every year. What will the population be after 2 years?
34. 34.What is the difference between the compound interest and the simple interest on ₹50400 at 25% per year for 2 years (in ₹)?
35. 35.A town has 27600 people. The population grows by 15% every year. What will the population be after 2 years?
36. 36.Find the compound interest on ₹16000 at 5% per year for 3 years, compounded every year (in ₹).
37. 37.What amount will ₹32300 grow to in 1 year at 8% per year compound interest (in ₹)?
38. 38.What amount will ₹2500 grow to in 2 years at 12% per year compound interest (in ₹)?
39. 39.A town has 24100 people. The population grows by 20% every year. What will the population be after 1 year?
40. 40.Find the compound interest on ₹34400 at 5% per year for 2 years, compounded every year (in ₹).

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